Soling machine



I April 11, 1933- A. EHRESMANN Er AL SOLING MACHINE Filed April 16, 1931 Pfented pr. Il, 1933 UNITED s'rATEs ADAM EHRESMANN AND LUDWIG sTnnIBnL, or xAnLsBUHE, GERMANY soLmG MACHINE 'i I Application med April 16, 1931, semi No. 530,61'0, and in Germapy April 28,1930. 'i v We have filed an application for patent in Germany, April 28th, 1930.

Our invention relates to soling machines, in which the tool for feeding the work is provided with a knife for cutting the channel for the stitches, this knife being so disposed that in the ascending movement of the feeder it cuts the said channel at right angles to the surface of the sole, into the underside of the sole, which is pressed lirmly against the stitch plate by the presser foot.

According to the invention the stitch plate is carried by a slider adapted to be moved up and down and fixed on the front of the frame, so that by moving this slider vertically the stitch plate can be adjusted to cut Channels of difierent depths.

Our invention is illustrated by way of example in thelaccompanying drawing in which Figure 1 shows the parts to be considered of a machine according to the invention in front elevation; Figure 2 is a corresponding .plan one of the two screws la and handles Z shown in Figure l being removed for the purpose of clearly showing the scale r; and Figure 3 shows a detail part in vertical section along the line A-B of Figure 1.

Below the presser foot a and the stitch plate b there is disposed the free end of va lever arm 0, to which is secured a steel knife projecting upwardly through the slot of the stitch plate. This knife is provided at the top with a steppededge d, e; the higher and narrower part d of this knife edge forms the tool for feeding the work, while the lower and wider part e forms the channellin While the presser foot holds the wor firmly on the stitch plate, the knife is moved upwards to such an extent that not only the higher part d of its cutting edge but also the lower part e of the same penetrates into the work, wherein the part d pierces a stitch hole and the part e cuts a piece of a channel into the under side of the sole resting on the stitch plate. After the presser foot has been lifted,

the knife is moved to the left to the extent of a stitch and thus feeds the work. The presser foot and the knife are nowmoved downwards so that the presser foot again presses the work upon the stitch plate while the parts d and knife. i

e of the knife edge leave' the work. 'ThereafterV the knife is moved back to the right and' againupwardsjso that 'the part d'pirerces'a' further stitch hole andthe part ef cuts fal'fur--' ther piece of thexchanneldirectly joining the preceding piece. 'The stitch'iplate Vbfisscrewedf to the upper part of a'frame-Shaped'slider'ff, which 'is adapted'for vertical recipro'catoryf,V movement on'the 'vertical flat front face-of 4,.1, the frontpart 71; of the machine 'frame v'vhilivhouses the shuttle'box-g; Two'pins'aiidj V four round-headed screws. .kk f engagingi through slots in the slider, in holefsv the* part ih, serve to-guidethe slider in a straight] e line in its' up-and-down movement' yThetwo upperiscrews k are each provided: withl a han'- dle Z, so that they 4can bel 'turned directly handf .In turning theminwardly theslider fl is clamped'firmlybetween their heads and' the part ih, so that this' slider togetherfwithl i position;4 I ,1. yThe slider f and the stitch plate b may moved up and down by means offasecondf slider, mtbent. fromsheet metal, (which--'is'l'm' adapted to reciprocate infrontofthelower, part of the rslider f, horizontally on the'base'*L plate n of the frame,andtransversely to the spndle Vof the shutt'le'box' g. This second slider has two feet 0, the upwardly proj ecting rear flange of which forms a wedge p. Each of these wedges engages in a wedge-Shaped groove on the rear side of the slider f, thus holding the slider m in position and, when this is horizontally displaced, efecting the vertical movement of the slider f. An upwardly extending proj ection g on the left end of the slider m limits the movement to the right of the slider m by striking against the d: lateral edge of the slider f, and therefore also limits the upwa-rd movement of the slider'f and the stitch plate b (indicated by broken lines in Figure 1), while, in conjunction with the lateral vedge of the slider f, a scale r, progfvided on the upper side of the slider m, indicates the elevation of the stitch plate b and therefore'the depth of the channel which is I cut by the knife e into the sole resting on' h the stitch plate.

the stitch plate biisreta'ined 2- f i 1,9os,422

What We claim as our invention and desire to secure by Letters Patent is: i

1. In a soling machine the combination of a machine frame having a bed plate, a presser i 5 foot, a stitchv plate disposed below said presser foot and provided With a slot, a lever arm, the free end of said arm being disposed below said stitch plate, aknife forming both a feeding and a channellingtool, said knife being lfl'secured to the free end of said arm and 'pro-t jecting upwardlythroughisaid slot, aslider carrying said stitch plate and being disposed on the front of said frame and adapted tobemoved thereon up and down, a second Slider I 15 disposed in front of said-frame and on said bed plate. and adapted to be moved horizontally and to e'ect the vertical movement of thefirstsaid slider, vand means for fixing thelatt'er. i 4 I i 2,95 2.V In a solingmachine the combination of a machine frame having a bed plate, a presser foot, a stitch plate disposed belowsaid presser foot and provided with a slot, a lever arm, the free end of said arm being disposed below said stitchL plate, aknife forming both a feed;

ingvand alchannelling tool, said knife being secnred to the free end of said arm and profjecting upwardly through said slot, a slider carrying said stitch plate and being disposed IML= on the front of said frame and adapted to be moved thereon up and down, a second slider disposed in front of Asaid frame and on said bed plate,'wedge Shaped grooves in the firstL said Slider, and wedges on said second slider 35jengaging lin said grooves, thev said second Slider being adapted-to be moved horizontally so as to move the first said Slider vertically byV said wedges Vcoacting yWith said wedge Shaped grooves, and means for fixing the first 40 said slider. i.

In testimonyvwhereo-f we affix our'signa- *mm i I VADAM EHRESMANN. 4, f lL UDWIG*STREIBEL :faV 

